Adjustable weaving loom



Dec. 27, 1966 D. A. BERGER ADJUSTABLE WEAVING LOOM Filed March 1, 1965 I N VE N TOR.

-Dfl/VI I EZ A, 5515 115 United States Patent Filed Mar. 1, 1965, Ser. No. 435,908 3 Claims. (Cl. 139-34 This invention relates to an adjustable weaving loom frame.

It is the principal object of this invention to provide a rectangular loom frame made up of four right-angularly related side bars separably and adjustably connected to each other, with each side bar formed with a row of upstanding teeth to hold the warp and rool threads during the weaving operation.

Another object of this invention is to provide a loom frame construction of great strength and simplicity, and wherein the several side bars of the loom frame are interchangeable and may be readily formed from sheet metal by a simple stamping operation, thereby effecting economy of manufacture such as to reduce the cost of the loom frame to a minimum.

A still further object of this invention resides in the novel manner in which the side bars are readily detachably secured together to form the loom frame by providing adjacent ends of the side bars forming a corner of the loom frame with a slotted tongue and detent at one end of one side bar to interlock with a selected one of a row of slots and openings respectively in the corresponding adjacent end of the other side bar forming said corner.

Yet another object of this invention is to provide each side bar with two right-angularly related legs in the form of an angle bar with the vertical leg being provided with the row of upstanding teeth and the other horizontal leg being provided at one end with the slotted tongue and detent, and the row of slots lying substantially at the line of juncture of the two legs at the other end portion of the side bar. 7

Another object of the invention is to provide a curvature in each of the teeth of each side bar directed outwardly of the loom frame whereby accidental slipping of the threads therefrom will be prevented.

A further object of the invention is to provide a construction whereby a loom frame may be adjusted to adapt it for weaving rectangular pads of various sizes and requiring but a simple separating and re-connecting manipulation of the side bars without the need of additional securing elements or fasteners.

With the foregoing objects in view, together with such other objects and advantages as may subsequently appear, the invention is carried into effect as illustrated in the accompanying drawings, in which:

FIGURE 1 is a perspective view of the loom frame.

FIGURE 2 is a detail sectional view of one corner of the loom frame taken on line 2-2, FIGURE 1.

FIGURE 3 is an exploded view showing details of construction of adjacent connecting ends of the side bars forming one of the corners.

Referring in detail to the drawings, wherein similar reference numerals identify corresponding parts throughout the several views, the loom frame which is of square or rectangular shape, is made up of four side bars 12, 13, 14 and 15. Preferably the side bars are each of the same length though opposite pairs of side bars may be of different length, if so desired.

Each side bar is of an angle bar formation formed from a sheet metal stamping and as all four side bars are of identical construction, a detailed description of two side bars making up a corner of the loom frame will suffice.

Side bar 14 is formed as a sheet metal stamping to provide a horizontal leg 18 and a vertical leg 20. Extending upwardly from the upper edge of the vertical leg 20 is a 3,294,124 Patented Dec. 27, 1966 i in FIGURE 1, the endmost teeth of the row are spaced from the terminal ends of the side bar. Extending from one terminal end of the horizontal leg 18, see FIGURE 3, is a tongue 24 having a rounded edge 25 and a slot or recess 26 which extends partly into the horizontal leg 18. Formed in the horizontal leg 18, is a downwardly directed detent 28 located adjacent the slot 26. At the other end portion of the side bar 14 are a row of spaced slots 30 formed in the vertical leg 20 and located in the plane of the upper side of the horizontal leg 18. As seen in FIGURE 1, four slots 30 are provided in the side bar 14, though it is to be understood that the number of slots may be varied dependent on the length of the side bar and the number of adjustments desired to vary the size of the loom frame, as will be hereinafter described. Also provided in the horizontal leg 18, are a row of detent receiving openings 32, with each opening being suitably located opposite a slot 30. The slots 30 are equally spaced and positioned in the side bar with the innermost slot 30 located at the center of the side bar. It is to be understood that each of the other side bars 12, 13 and 15, have a horizontal leg 18, a vertical leg 20 with upstanding bowed teeth 22, a tongue 24 with slot 26, detent 28, slots 30 and detent receiving openings 32, and thus all four side bars of the loom frame 10 are identical and interchangeable.

As shown in FIGURE 1, the loom frame 10 is in its largest form. Thus, side bar 14 is connected to side bar 15, by inserting tongue 24 into outermost slot 30, see FIGURE 3, and then moving side bar 14 inwardly of side bar 15 to have slot 26 of tongue 24 interlock with vertical leg 20, the horizontal leg 18 of side bar 14 being seated on the horizontal leg 18 of side bar 15. In this position, the detent 28 of side bar 14 will seat within the detent receiving opening 32. As will be obvious, the slotted tongue and detent will operate to securely hold the adjacent ends of the side bars 14 and 15 in right-angularly related assembled relation to form a corner connection that is both strong and efl'icient, and which at the same time can be readily disengaged. In the same manner, side bar 13 is connected to side bar 14, side bar 12 to side bar 13, and side bar 15 to side bar 12; the tongue of each being similarly engageable in the outermost slot 30 of its adjacent side bar.

Due to the provision of four slots 30 in each side bar, the loom frame may be adjusted to provide four different sizes of loom frame, the largest size being shown as a square in FIGURE 1. Thus, to provide a smaller loom frame, any two interconnected side bars may be selected for disengagement with the respective other two side bars, and if it is desired, for example, to form the smallest size loom frame and assuming side bars 12 and 13 are respectively disengaged from side bars 15 and 14; upon insertion of tongue 24 of side bar 13 into the innermost slot 30 of side bar 14, and tongue 24 of side bar 15 into the innermost slot 30 of side bar 12, the selected smallest size of loom frame will be obtained which will be of rectangular shape, as will also the other two adjusted sizes.

While certain novel features of my invention have been shown and described and are pointed out in the annexed claims, it will be understood that various omissions, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing from the spirit of the invention.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. An adjustable weaving loom frame comprising:

(a) four side bars,

(b) each side bar being of angle bar form, having a horizontal leg and a vertical leg,

(c) a row of upstanding teeth extending from the upper edge of the vertical leg,

, (d) a tongue extending from one end of the horizontal leg, integral therewith and in the plane thereof,

(e) a notch at the base of said tongue opening at the free longitudinal edge of said horizontal leg and normal thereto,

(f) a downwardly projecting detent in said horizontal leg adjacent to and inwardly of said tongue notch,

(g) a row of longitudinally spaced and aligned slots in said vertical leg located substantially at the juncture of the vertical leg with the horizontal leg, and

(h) a row of longitudinally spaced and aligned openings in said horizontal leg with each opening opposite a slot in said vertical leg,

whereby an interlocking engagement of said side bars to each other to provide said loom frame is effected by the insertion of a tongue of one side bar into a selected slot in the vertical leg of an adjacent side bar with a part of said vertical leg fitting into said tongue notch and the detent in the horizontal leg of said one side bar projecting into the opening in the horizontal leg of the adjacent side bar opposite said selected slot to thereby provide a corner connection wherein said adjacent side bars are right-angularly related.

2. The weaving loom frame of claim 1, wherein:

(a) the innermost of the slots in said vertical leg is positioned substantially midway of the length thereof and the outermost of the slots therein is positioned adjacent the terminal end thereof remote from said tongue, and

(b) said slots in said vertical leg being each of the same length and exceeding the width of said tongue to permit movement of the tongue in the selected slot so as to place said part of the vertical leg into said tongue notch.

3. The weaving loom frame of claim 2, wherein:

(a) said row of teeth on each side bar are curved in a direction outwardly of the vertical leg thereof, whereby to prevent accidental displacement of threads woven thereon, and

(b) said row of teeth on each side bar lying between the outermost slot and detent thereof.

References Cited by the Examiner UNITED STATES PATENTS 1,175,924 3/1916 Brady 2815 1,997,539 4/1935 Bechhofer .Q 2815 2,063,726 12/1936 Collingbourne 13934 2,136,552 11/1938 Le Page 139-34 2,292,356 8/1942 Belanger 13934 2,451,207 10/1948 Ferguson 13934 2,527,333 10/1950 Raizen 139-34 2,723,439 11/1955 Doniger 2815 3,220,439 11/1965 Davis 139-34 MERVIN STEIN, Primary Examiner.

I. KEE CHI, Assistant Examiner. 

1. AN ADJUSTABLE WEAVING LOOM FRAME COMRISING: (A) FOUR SIDE BARS, (B) EACH SIDE BAR BEING OF ANGLE BAR FORM, HAVING A HORIZONTAL LEG AND A VERTICAL LEG , (C) A ROW OF UPSTANDING TEETH EXTENDING FROM THE UPPER EDGE OF THE VERTICAL LEG, (D) A TONGUE EXTENDING FROM ONE END OF THE HORIZONTAL LEG, INTEGRAL THEREWITH AND IN THE PLANE THEREOF, (E) A NOTCH AT THE BASE OF SAID TONGUE OPENING AT THE FREE LONGITUDINAL EDGE OF SAID HORIZONTAL LEG AND NORMAL THERETO, (F) A DOWNWARDLY PROJECTING DETENT IN SAID HORIZONTAL LEG ADJACENT TO AND INWARDLY OF SAID TONGUE NOTCH, (G) A ROW OF LONGITUDINALLY SPACED AND ALIGNED SLOTS IN SAID VERTICAL LEG LOCATEDD SUBSTANTIALLY AT THE JUNCTURE OF THE VERTICAL LEG WITH THE HORIZONTAL LEG, AND (H) A ROW OF LONGITUDINALY SPACED AND ALIGNED OPENINGS IN SAID HORIZONTAL LEG WITH EACH OPENING OPPOSITE A SLOT IN SAID VERTICAL LEG, WHEREBY AN INTERLOCKING ENGAGEMENT OF SAID SIDE BARS TO EACH OTHER TO PROVIDE SAID LOOM FRAME IS EFFECTED BY THE INSERTION OF A TONGUE OF ONE SIDE BAR INTO A SELECTED SLOT IN THE VERTICAL LEG OF AN ADJACENT SIDE BAR WITH A PART OF SAID VERTICAL LEG FITTING INTO SAID TONGUE NOTCH AND THE DETENT IN THE HORIZONTAL LEG OF SAID ONE SIDE BAR PROJECTING INTO THE OPENING IN THED HORIZONTAL LEG OF THE ADJACENT SIDE BAR OPPOSITE SAID SELECTED SLOT TO THEREBY PROVIDE A CORNER CONNECTION WHEREIN SAID ADJACENT SIDE BARS ARE RIGHT-ANGULARLY RELATED. 